Definition and quantification of drapeability through the measurement of constituent effects

13th International Conference on Textile Composites

Christ, M.^1 ; Herrmann, A.^2

Faserinstitut Bremen E.V., Am Biologischen Garten 2, Bremen

28359, Germany^1

Universitat Bremen, Postfach 33 04 40, Bremen

28334, Germany^2

关键词: Characteristic value;    Composite designs;    Digital image analysis;    Experimental test;    Fabric anisotropy;    Measurement technologies;    Process parameters;    Textile designs;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/406/1/012015/pdf
DOI  :  10.1088/1757-899X/406/1/012015

来源: IOP

【 摘 要 】

Although considerable work has been carried out in the field of drapeability research, both the definition of what drapeability comprises as well as the tools to measure and quantify it must be further developed. This paper presents a definition of drapeability that is meant to broaden its scope to include not only the important effects of shearing and wrinkling, but all constituent effects such as gap formation, undulations, loops (tow buckling) and fabric anisotropy. This definition is completed by an experimental test device to measure and quantify all of these effects in a single, standardized setup (available as the Textechno Drapetest).The Drapetest utilizes optic measurement technology coupled with digital image analysis software to detect and measure fibre positions and orientation, and fabric topology. For each of the defined drapeability effects characteristic values were generated from this optical data that can describe the intensity, distribution and extent of the effect in question. The device and methodology was empirically validated using a set of 72 specially manufactured glass fibre NCF. The interdependencies between textile design, process parameters and drapeability effects as well as a semi-analytical equation for them are shown. A method to use these semi-analytical equations in the composite design process is introduced [1].